The Time Machine (Unabridged‪)‬

A Victorian scientist travels far into the future, and finds that suffering has been replaced by beauty, contentment, and peace. He meets the Eloi, a species descended from man, but realizes that these beautiful people are just remnants of a once-great culture; they are now weak and afraid of the dark.
The Eloi have reason to be afraid. In deep tunnels beneath their paradise lurks another race descended from humanity: the sinister Morlocks.